Finding the Fourth Proportional to 106,973.91, 160,454.39 and 28,086.39

Step by Step Solution

1. Step 1: Write the proportion equation
   106,973.91 : 160,454.39 = 28,086.39 : x
2. Step 2: Convert to fraction form
   106,973.91/160,454.39 = 28,086.39/x
3. Step 3: Cross multiply
   106,973.91x = 160,454.39 × 28,086.39
4. Step 4: Simplify right side
   106,973.91x = 4,506,584,434.32
5. Step 5: Solve for x
   x = 4,506,584,434.32/106,973.91
6. Step 6: Final answer
   x = 42,127.88